lily/parser.yy

   1 %{ // -*-Fundamental-*-
   2
   3 /*
   4   parser.yy -- Bison/C++ parser for LilyPond
   5
   6   source file of the GNU LilyPond music typesetter
   7
   8   (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   9                  Jan Nieuwenhuizen <janneke@gnu.org>
  10 */
  11
  12 /*
  13
  14 TODO:
  15
  16 * The rules for who is protecting what are very shady. Uniformise
  17   this.
  18
  19 * There are too many lexical modes?
  20
  21 */
  22
  23 #include <ctype.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26
  27
  28 #include "book.hh"
  29 #include "context-def.hh"
  30 #include "dimensions.hh"
  31 #include "event.hh"
  32 #include "file-path.hh"
  33 #include "input-smob.hh"
  34 #include "input.hh"
  35 #include "lily-guile.hh"
  36 #include "lilypond-input-version.hh"
  37 #include "ly-module.hh"
  38 #include "main.hh"
  39 #include "midi-def.hh"
  40 #include "misc.hh"
  41 #include "music-list.hh"
  42 #include "music-sequence.hh"
  43 #include "my-lily-lexer.hh"
  44 #include "my-lily-parser.hh"
  45 #include "paper-book.hh"
  46 #include "paper-def.hh"
  47 #include "scm-hash.hh"
  48 #include "scm-option.hh"
  49 #include "score.hh"
  50 #include "text-item.hh"
  51 #include "warn.hh"
  52
  53 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
  54
  55 Music *property_op_to_music (SCM op);
  56 Music *context_spec_music (SCM type, SCM id, Music *m, SCM ops_);
  57 SCM get_next_unique_context ();
  58
  59 #define YYERROR_VERBOSE 1
  60
  61 #define YYPARSE_PARAM my_lily_parser
  62 #define YYLEX_PARAM my_lily_parser
  63 #define THIS\
  64         ((My_lily_parser *) my_lily_parser)
  65
  66 #define yyerror THIS->parser_error
  67
  68 /* Add symbols to the TAGS field of a music object.  */
  69
  70 void
  71 tag_music (Music *m, SCM tag, Input ip)
  72 {
  73         SCM tags = m->get_property ("tags");
  74         if (ly_c_symbol_p (tag))
  75                 tags = scm_cons (tag, tags);
  76         else if (ly_c_list_p (tag))
  77                 tags = ly_append2 (tag, tags);
  78         else
  79                 ip.warning (_ ("Tag must be symbol or list of symbols."));
  80
  81         m->set_property ("tags", tags);
  82 }
  83
  84 bool
  85 is_regular_identifier (SCM id)
  86 {
  87   String str = ly_scm2string (id);
  88   char const *s = str.to_str0 ();
  89
  90   bool v = true;
  91 #if 0
  92   isalpha (*s);
  93   s++;
  94 #endif
  95   while (*s && v)
  96    {
  97         v = v && isalnum (*s);
  98         s++;
  99    }
 100   return v;
 101 }
 102
 103 SCM
 104 make_simple_markup (SCM encoding, SCM a)
 105 {
 106         SCM simple = ly_scheme_function ("simple-markup");
 107         if (ly_c_symbol_p (encoding))
 108                 return scm_list_3 (ly_scheme_function ("encoded-simple-markup"),
 109                            encoding, a);
 110         return scm_list_2 (simple, a);
 111 }
 112
 113 bool
 114 is_duration (int t)
 115 {
 116   return t && t == 1 << intlog2 (t);
 117 }
 118
 119 void
 120 set_music_properties (Music *p, SCM a)
 121 {
 122   for (SCM k = a; ly_c_pair_p (k); k = ly_cdr (k))
 123         p->internal_set_property (ly_caar (k), ly_cdar (k));
 124 }
 125
 126 SCM
 127 make_chord_step (int step, int alter)
 128 {
 129         if (step == 7)
 130                 alter += FLAT;
 131
 132         while (step < 0)
 133                 step += 7;
 134         Pitch m ((step -1) / 7, (step - 1) % 7, alter);
 135         return m.smobbed_copy ();
 136 }
 137
 138
 139 SCM
 140 make_chord (SCM pitch, SCM dur, SCM modification_list)
 141 {
 142         SCM chord_ctor = ly_scheme_function ("construct-chord");
 143         SCM ch = scm_call_3 (chord_ctor, pitch, dur, modification_list);
 144         scm_gc_protect_object (ch);
 145         return ch;
 146 }
 147
 148 /* Todo: actually also use apply iso. call too ...  */
 149 bool
 150 ly_input_procedure_p (SCM x)
 151 {
 152         return ly_c_procedure_p (x)
 153                 || (ly_c_pair_p (x) && ly_c_procedure_p (ly_car (x)));
 154 }
 155
 156 Music*
 157 set_property_music (SCM sym, SCM value)
 158 {
 159         Music *p = MY_MAKE_MUSIC ("PropertySet");
 160         p->set_property ("symbol", sym);
 161         p->set_property ("value", value);
 162         return p;
 163 }
 164
 165 Music*
 166 make_music_relative (Pitch start, Music *music)
 167 {
 168         Music *relative = MY_MAKE_MUSIC ("RelativeOctaveMusic");
 169         relative->set_property ("element", music->self_scm ());
 170
 171         Pitch last = music->to_relative_octave (start);
 172         if (lily_1_8_relative)
 173                 music->set_property ("last-pitch", last.smobbed_copy ());
 174         return relative;
 175 }
 176
 177 Music*
 178 make_lyric_combine_music (SCM name, Music *music)
 179 {
 180         Music *combine = MY_MAKE_MUSIC ("NewLyricCombineMusic");
 181         combine->set_property ("element", music->self_scm ());
 182         combine->set_property ("associated-context", name);
 183         return combine;
 184 }
 185
 186 %}
 187
 188 /* We use SCMs to do strings, because it saves us the trouble of
 189 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 190 of the parse stack onto the heap. */
 191
 192 %left NEWLYRICS
 193
 194 %union {
 195         Book *book;
 196         Music_output_def *outputdef;
 197         SCM scm;
 198         String *string;
 199         Music *music;
 200         Score *score;
 201         int i;
 202 }
 203 %{
 204
 205 int
 206 yylex (YYSTYPE *s, void *v)
 207 {
 208         My_lily_parser *pars = (My_lily_parser*) v;
 209         My_lily_lexer *lex = pars->lexer_;
 210
 211         lex->lexval = (void*) s;
 212         lex->prepare_for_next_token ();
 213         return lex->yylex ();
 214 }
 215
 216
 217 %}
 218
 219 %expect 3
 220
 221 /*
 222   Three shift/reduce problems:
 223
 224 2. \markup identifier.
 225
 226 3. \markup { }
 227
 228 4.  \repeat
 229         \repeat .. \alternative
 230
 231
 232     \repeat { \repeat .. \alternative }
 233
 234 or
 235
 236     \repeat { \repeat } \alternative
 237
 238 )
 239  */
 240
 241
 242 %pure_parser
 243
 244 %token ACCEPTS
 245 %token ADDLYRICS
 246 %token ADDQUOTE
 247 %token LYRICSTO
 248 %token ALIAS
 249 %token ALTERNATIVE
 250 %token APPLYCONTEXT
 251 %token APPLYOUTPUT
 252 %token AUTOCHANGE
 253 %token BAR
 254 %token BOOK
 255 %token BREATHE
 256 %token CHANGE
 257 %token CHORDMODIFIERS
 258 %token CHORDS
 259 %token DOUBLE_ANGLE_OPEN
 260 %token DOUBLE_ANGLE_CLOSE
 261 %token CLEF
 262 %token COMMANDSPANREQUEST
 263 %token CONSISTS
 264 %token CONSISTSEND
 265 %token CONTEXT
 266 %token DEFAULT
 267 %token DENIES
 268 %token DESCRIPTION
 269 %token EXTENDER
 270 %token FIGURES FIGURE_OPEN FIGURE_CLOSE
 271 %token FIGURE_BRACKET_CLOSE FIGURE_BRACKET_OPEN
 272 %token GRACE
 273 %token ACCIACCATURA
 274 %token APPOGGIATURA
 275 %token GROBDESCRIPTIONS
 276 %token HEADER
 277 %token HYPHEN
 278 %token INVALID
 279 %token KEY
 280 %token LYRICS
 281 %token LYRICS_STRING
 282 %token MARK
 283 %token MIDI
 284 %token MULTI_MEASURE_REST
 285 %token NAME
 286 %token NEWCONTEXT
 287 %token NOTES
 288 %token OCTAVE
 289 %token ONCE
 290 %token OVERRIDE SET REVERT
 291 %token PAPER
 292 %token PARTCOMBINE
 293 %token PARTIAL
 294 %token QUOTE
 295 %token RELATIVE
 296 %token REMOVE
 297 %token REPEAT
 298 %token REST
 299 %token SCM_T
 300 %token SCORE
 301 %token SEQUENTIAL
 302 %token NEWLYRICS
 303 %token SIMULTANEOUS
 304 %token SKIP
 305 %token SPANREQUEST
 306 %token TAG
 307 %token TEMPO
 308 %token TIMES
 309 %token TIME_T
 310 %token TRANSPOSE
 311 %token TRANSPOSITION
 312 %token TYPE
 313 %token UNSET
 314 %token WITH
 315
 316 /* escaped */
 317 /* FIXME: this sucks.  The user will get to see these names:
 318     syntax error, unexpected E_CHAR:
 319                 \
 320                  %%
 321   */
 322 %token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 323 %token E_LEFTSQUARE E_RIGHTSQUARE E_TILDE
 324 %token E_BACKSLASH
 325 %token <i> E_UNSIGNED
 326 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET  CHORD_SLASH
 327 %token FIGURE_SPACE
 328
 329 %token <i>      DIGIT
 330 %token <scm>    NOTENAME_PITCH
 331 %token <scm>    TONICNAME_PITCH
 332 %token <scm>    CHORDMODIFIER_PITCH
 333 %token <scm>    DURATION_IDENTIFIER
 334 %token <scm>    FRACTION
 335 %token <id>     IDENTIFIER
 336 %token DRUMS
 337 %token <scm>    DRUM_PITCH
 338 %token <scm>    CHORD_MODIFIER
 339 %token <scm>    SCORE_IDENTIFIER
 340 %token <scm>    MUSIC_OUTPUT_DEF_IDENTIFIER
 341 %token <scm>    NUMBER_IDENTIFIER
 342 %token <scm>    EVENT_IDENTIFIER
 343 %token <scm>    MUSIC_IDENTIFIER CONTEXT_DEF_IDENTIFIER
 344 %token <scm>    STRING_IDENTIFIER SCM_IDENTIFIER
 345 %token <scm>    RESTNAME
 346 %token <scm>    STRING
 347 %token <scm>    SCM_T
 348 %token <i>      UNSIGNED
 349 %token <scm>   REAL
 350
 351 %token MARKUP
 352 %token <scm> MARKUP_HEAD_MARKUP0
 353 %token <scm> MARKUP_HEAD_EMPTY
 354 %token <scm> MARKUP_HEAD_MARKUP0_MARKUP1
 355 %token <scm> MARKUP_HEAD_SCM0
 356 %token <scm> MARKUP_HEAD_SCM0_MARKUP1
 357 %token <scm> MARKUP_HEAD_SCM0_SCM1
 358 %token <scm> MARKUP_HEAD_SCM0_SCM1_SCM2
 359 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2
 360
 361 %token <scm> MUSIC_FUNCTION_SCM
 362 %token <scm> MUSIC_FUNCTION_MUSIC
 363 %token <scm> MUSIC_FUNCTION_SCM_MUSIC
 364 %token <scm> MUSIC_FUNCTION_MUSIC_MUSIC
 365 %token <scm> MUSIC_FUNCTION_SCM_SCM_MUSIC
 366 %token <scm> MUSIC_FUNCTION_SCM_MUSIC_MUSIC
 367
 368 %token <scm> MARKUP_IDENTIFIER MARKUP_HEAD_LIST0
 369 %type <scm> markup markup_line markup_list  markup_list_body full_markup
 370
 371 %type <book>    book_block book_body
 372 %type <i>       exclamations questions dots optional_rest
 373 %type <i>       bass_mod
 374 %type <scm>     grace_head
 375 %type <scm>     oct_check
 376 %type <scm>     context_mod_list
 377 %type <scm>     lyric_element
 378 %type <scm>     bass_number br_bass_figure bass_figure figure_list figure_spec
 379 %type <scm>     new_lyrics
 380 %type <outputdef> output_def
 381 %type <scm>     lilypond_header lilypond_header_body
 382 %type <music>   open_event close_event
 383 %type <i>       sub_quotes sup_quotes
 384 %type <music>   toplevel_music
 385 %type <music>   simple_element event_chord command_element
 386 %type <music>   Composite_music Simple_music Prefix_composite_music Generic_prefix_music
 387 %type <scm>     Generic_prefix_music_scm
 388 %type <music>   Grouped_music_list
 389 %type <music>   Repeated_music
 390 %type <scm>     Alternative_music
 391 %type <i>       tremolo_type
 392 %type <i>       bare_int  bare_unsigned
 393 %type <i>       script_dir
 394 %type <scm>     identifier_init
 395 %type <scm>     simple_string
 396
 397 %type <music>   note_chord_element chord_body chord_body_element
 398 %type <scm>     chord_body_elements
 399 %type <scm>     steno_duration optional_notemode_duration multiplied_duration
 400
 401 %type <scm>     post_events
 402 %type <music>   gen_text_def direction_less_event direction_reqd_event
 403 %type <scm>     steno_pitch pitch absolute_pitch pitch_also_in_chords
 404 %type <scm>     steno_tonic_pitch
 405 %type <scm>     duration_length fraction
 406
 407 %type <scm>     chord_item chord_items chord_separator new_chord
 408 %type <scm>     step_number step_numbers
 409
 410 %type <scm>     embedded_scm scalar
 411 %type <music>   Music Sequential_music Simultaneous_music
 412 %type <music>   relative_music re_rhythmed_music
 413 %type <music>   music_property_def context_change
 414 %type <scm>     context_prop_spec
 415 %type <scm>     Music_list
 416 %type <scm>     property_operation
 417 %type <scm>     context_mod context_def_mod optional_context_mod
 418 %type <outputdef>       music_output_def_body music_output_def_head
 419 %type <music>   post_event tagged_post_event
 420 %type <music>   command_req
 421 %type <music>   string_number_event
 422 %type <scm>     string bare_number number_expression number_term number_factor
 423 %type <score>   score_block score_body
 424
 425 %type <scm>     context_def_spec_block context_def_spec_body
 426 %type <music>   tempo_event
 427 %type <scm>     script_abbreviation
 428
 429
 430
 431 %left '-' '+'
 432
 433 /* We don't assign precedence to / and *, because we might need varied
 434 prec levels in different prods */
 435
 436 %left UNARY_MINUS
 437
 438 %%
 439
 440 lilypond:       /* empty */
 441         | lilypond toplevel_expression {
 442         }
 443         | lilypond assignment {
 444         }
 445         | lilypond error {
 446                 THIS->error_level_ = 1;
 447         }
 448         | lilypond INVALID      {
 449                 THIS->error_level_ = 1;
 450         }
 451         ;
 452
 453 toplevel_expression:
 454         lilypond_header {
 455                 THIS->header_ = $1;
 456         }
 457         | add_quote {
 458
 459         }
 460         | book_block {
 461                 Book *book = $1;
 462                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-book-handler");
 463                 scm_call_2 (proc, THIS->self_scm (), book->self_scm ());
 464                 scm_gc_unprotect_object (book->self_scm ());
 465         }
 466         | score_block {
 467                 Score *score = $1;
 468
 469                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-score-handler");
 470                 scm_call_2 (proc, THIS->self_scm (), score->self_scm ());
 471                 scm_gc_unprotect_object (score->self_scm ());
 472         }
 473         | toplevel_music {
 474                 Music *music = $1;
 475                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-music-handler");
 476                 scm_call_2 (proc, THIS->self_scm (), music->self_scm ());
 477                 scm_gc_unprotect_object (music->self_scm ());
 478         }
 479         | output_def {
 480                 SCM id = SCM_EOL;
 481                 if (dynamic_cast<Paper_def*> ($1))
 482                         id = scm_makfrom0str ("$defaultpaper");
 483                 else if (dynamic_cast<Midi_def*> ($1))
 484                         id = scm_makfrom0str ("$defaultmidi");
 485                 THIS->lexer_->set_identifier (id, $1->self_scm ());
 486                 scm_gc_unprotect_object ($1->self_scm ());
 487         }
 488         ;
 489
 490 toplevel_music:
 491         Composite_music {
 492         }
 493         ;
 494
 495 embedded_scm:
 496         SCM_T
 497         | SCM_IDENTIFIER
 498         ;
 499
 500
 501 lilypond_header_body:
 502         {
 503                 $$ = ly_make_anonymous_module (safe_global_b);
 504                 THIS->lexer_->add_scope ($$);
 505         }
 506         | lilypond_header_body assignment  {
 507
 508         }
 509         ;
 510
 511 lilypond_header:
 512         HEADER '{' lilypond_header_body '}'     {
 513                 $$ = THIS->lexer_->remove_scope ();
 514         }
 515         ;
 516
 517
 518 /*
 519         DECLARATIONS
 520 */
 521 assignment:
 522         STRING {
 523                 THIS->push_spot ();
 524         }
 525         /* cont */ '=' identifier_init  {
 526
 527         /*
 528                 Should find generic way of associating input with objects.
 529         */
 530                 Input ip = THIS->pop_spot ();
 531
 532                 if (! is_regular_identifier ($1))
 533                 {
 534                         ip.warning (_ ("Identifier should have alphabetic characters only"));
 535                 }
 536
 537                 THIS->lexer_->set_identifier ($1, $4);
 538
 539 /*
 540  TODO: devise standard for protection in parser.
 541
 542   The parser stack lives on the C-stack, which means that
 543 all objects can be unprotected as soon as they're here.
 544
 545 */
 546         }
 547         | embedded_scm { }
 548         ;
 549
 550
 551 identifier_init:
 552         score_block {
 553                 $$ = $1->self_scm ();
 554                 scm_gc_unprotect_object ($$);
 555         }
 556         | full_markup {
 557                 $$ = $1;
 558         }
 559         | output_def {
 560                 $$ = $1->self_scm ();
 561                 scm_gc_unprotect_object ($$);
 562         }
 563         | context_def_spec_block {
 564                 $$ = $1;
 565         }
 566         | Music  {
 567                 $$ = $1->self_scm ();
 568                 scm_gc_unprotect_object ($$);
 569         }
 570         | post_event {
 571                 $$ = $1->self_scm ();
 572                 scm_gc_unprotect_object ($$);
 573         }
 574         | number_expression {
 575                 $$ = $1;
 576         }
 577         | string {
 578                 $$ = $1;
 579         }
 580         | embedded_scm  {
 581                 $$ = $1;
 582         }
 583         ;
 584
 585 context_def_spec_block:
 586         CONTEXT '{' context_def_spec_body '}'
 587                 {
 588                 $$ = $3;
 589         }
 590         ;
 591
 592 context_def_spec_body:
 593         /**/ {
 594                 $$ = Context_def::make_scm ();
 595                 unsmob_context_def ($$)->set_spot (THIS->here_input ());
 596         }
 597         | CONTEXT_DEF_IDENTIFIER {
 598                 $$ = $1;
 599                 unsmob_context_def ($$)->set_spot (THIS->here_input ());
 600         }
 601         | context_def_spec_body GROBDESCRIPTIONS embedded_scm {
 602                 Context_def*td = unsmob_context_def ($$);
 603
 604                 for (SCM p = $3; ly_c_pair_p (p); p = ly_cdr (p)) {
 605                         SCM tag = ly_caar (p);
 606
 607                         /* TODO: should make new tag "grob-definition" ? */
 608                         td->add_context_mod (scm_list_3 (ly_symbol2scm ("assign"),
 609                                                         tag, scm_cons (ly_cdar (p), SCM_EOL)));
 610                 }
 611         }
 612         | context_def_spec_body context_mod {
 613                 unsmob_context_def ($$)->add_context_mod ($2);
 614         }
 615         ;
 616
 617 book_block:
 618         BOOK {
 619                 THIS->push_spot ();
 620         }
 621         /*cont*/ '{' book_body '}'      {
 622                 THIS->pop_spot ();
 623                 $$ = $4;
 624         }
 625         ;
 626
 627 /* FIXME:
 628    * Use 'handlers' like for toplevel-* stuff?
 629    * grok \paper and \midi?  */
 630 book_body:
 631         {
 632                 $$ = new Book;
 633                 $$->set_spot (THIS->here_input ());
 634         }
 635         | book_body score_block {
 636                 Score *score = $2;
 637                 $$->scores_.push (score);
 638                 scm_gc_unprotect_object (score->self_scm ());
 639         }
 640         | book_body Composite_music {
 641                 Music *music = $2;
 642                 Score *score
 643                         = unsmob_score (ly_music_scorify (music->self_scm ()));
 644                 $$->scores_.push (score);
 645                 scm_gc_unprotect_object (music->self_scm ());
 646         }
 647         | lilypond_header {
 648                 THIS->header_ = $1;
 649         }
 650         | book_body error {
 651         }
 652         ;
 653
 654 score_block:
 655         SCORE {
 656                 THIS->push_spot ();
 657         }
 658         /*cont*/ '{' score_body '}'     {
 659                 THIS->pop_spot ();
 660                 $$ = $4;
 661         }
 662         ;
 663
 664 score_body:
 665         Music   {
 666                 $$ = new Score;
 667
 668                 $$->set_spot (THIS->here_input ());
 669                 SCM m = $1->self_scm ();
 670                 scm_gc_unprotect_object (m);
 671
 672                 /*
 673                         guh.
 674                 */
 675                 SCM check_funcs = ly_scheme_function ("toplevel-music-functions");
 676                 for (; ly_c_pair_p (check_funcs); check_funcs = ly_cdr (check_funcs))
 677                         m = scm_call_1 (ly_car (check_funcs), m);
 678                 $$->music_ = m;
 679
 680         }
 681         | SCORE_IDENTIFIER {
 682                 $$ = new Score ( *unsmob_score ($1));
 683                 $$->set_spot (THIS->here_input ());
 684         }
 685         | score_body lilypond_header    {
 686                 $$->header_ = $2;
 687         }
 688         | score_body output_def {
 689                 $$->defs_.push ($2);
 690                 scm_gc_unprotect_object ($2->self_scm ());
 691         }
 692         | score_body error {
 693
 694         }
 695         ;
 696
 697
 698 /*
 699         MIDI
 700 */
 701 output_def:
 702         music_output_def_body '}' {
 703                 $$ = $1;
 704                 THIS->lexer_->remove_scope ();
 705                 THIS->lexer_->pop_state ();
 706         }
 707         ;
 708
 709 music_output_def_head:
 710         MIDI    {
 711                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultmidi"));
 712
 713
 714                 Midi_def *p = 0;
 715                 if (id)
 716                         p = dynamic_cast<Midi_def*> (id->clone ());
 717                 else
 718                         p = new Midi_def;
 719
 720                 $$ = p;
 721                 THIS->lexer_->add_scope (p->scope_);
 722         }
 723         | PAPER         {
 724                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 725                   Paper_def *p = 0;
 726                 if (id)
 727                         p = dynamic_cast<Paper_def*> (id->clone ());
 728                 else
 729                         p = new Paper_def;
 730
 731                 THIS->lexer_->add_scope (p->scope_);
 732                 $$ = p;
 733         }
 734         ;
 735
 736
 737 music_output_def_body:
 738         music_output_def_head '{' {
 739                 $$ = $1;
 740                 $$->input_origin_. set_spot (THIS->here_input ());
 741                 THIS->lexer_->push_initial_state ();
 742         }
 743         | music_output_def_head '{' MUSIC_OUTPUT_DEF_IDENTIFIER         {
 744                 scm_gc_unprotect_object ($1->self_scm ());
 745                 Music_output_def *o = unsmob_music_output_def ($3);
 746                 o->input_origin_.set_spot (THIS->here_input ());
 747                 $$ = o;
 748                 THIS->lexer_->remove_scope ();
 749                 THIS->lexer_->add_scope (o->scope_);
 750                 THIS->lexer_->push_initial_state ();
 751         }
 752         | music_output_def_body assignment  {
 753
 754         }
 755         | music_output_def_body context_def_spec_block  {
 756                 $$->assign_context_def ($2);
 757         }
 758         | music_output_def_body tempo_event  {
 759                 /*
 760                         junk this ? there already is tempo stuff in
 761                         music.
 762                 */
 763                 int m = ly_scm2int ( $2->get_property ("metronome-count"));
 764                 Duration *d = unsmob_duration ($2->get_property ("tempo-unit"));
 765                 Midi_def *md = dynamic_cast<Midi_def*> ($$);
 766                 if (md)
 767                         md->set_tempo (d->get_length (), m);
 768                 scm_gc_unprotect_object ($2->self_scm ());
 769         }
 770         | music_output_def_body error {
 771
 772         }
 773         ;
 774
 775 tempo_event:
 776         TEMPO steno_duration '=' bare_unsigned  {
 777                 $$ = MY_MAKE_MUSIC ("MetronomeChangeEvent");
 778                 $$->set_property ("tempo-unit", $2);
 779                 $$->set_property ("metronome-count", scm_int2num ( $4));
 780         }
 781         ;
 782
 783 /*
 784 The representation of a  list is the
 785
 786   (LIST . LAST-CONS)
 787
 788  to have  efficient append.
 789 */
 790 Music_list:
 791         /* empty */ {
 792                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 793         }
 794         | Music_list Music {
 795                 SCM s = $$;
 796                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 797                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 798                 if (ly_c_pair_p (ly_cdr (s)))
 799                         scm_set_cdr_x (ly_cdr (s), c); /* append */
 800                 else
 801                         scm_set_car_x (s, c); /* set first cons */
 802                 scm_set_cdr_x (s, c);  /* remember last cell */
 803         }
 804         | Music_list embedded_scm {
 805         }
 806         | Music_list error {
 807         }
 808         ;
 809
 810
 811 Music:
 812         Simple_music
 813         | Composite_music
 814         ;
 815
 816 Alternative_music:
 817         /* empty */ {
 818                 $$ = SCM_EOL;
 819         }
 820         | ALTERNATIVE '{' Music_list '}' {
 821                 $$ = $3;
 822         }
 823         ;
 824
 825
 826 Repeated_music:
 827         REPEAT simple_string bare_unsigned Music Alternative_music
 828         {
 829                 Music *beg = $4;
 830                 int times = $3;
 831                 SCM alts = ly_c_pair_p ($5) ? ly_car ($5) : SCM_EOL;
 832                 if (times < scm_ilength (alts)) {
 833                   unsmob_music (ly_car (alts))
 834                     ->origin ()->warning (
 835                     _ ("More alternatives than repeats.  Junking excess alternatives."));
 836                   alts = ly_truncate_list (times, alts);
 837                 }
 838
 839
 840                 SCM proc = ly_scheme_function ("make-repeated-music");
 841
 842                 SCM mus = scm_call_1 (proc, $2);
 843                 scm_gc_protect_object (mus); // UGH.
 844                 Music *r = unsmob_music (mus);
 845                 if (beg)
 846                         {
 847                         r-> set_property ("element", beg->self_scm ());
 848                         scm_gc_unprotect_object (beg->self_scm ());
 849                         }
 850                 r->set_property ("repeat-count", scm_int2num (times >? 1));
 851
 852                 r-> set_property ("elements",alts);
 853                 if (ly_c_equal_p ($2, scm_makfrom0str ("tremolo"))) {
 854                         /*
 855                         TODO: move this code to Scheme.
 856                         */
 857
 858                         /*
 859                         we can not get durations and other stuff correct down the line, so we have to
 860                         add to the duration log here.
 861                         */
 862                         SCM func = ly_scheme_function ("shift-duration-log");
 863
 864                         int dots = ($3 % 3) ? 0 : 1;
 865                         int shift = -intlog2 ((dots) ? ($3*2/3) : $3);
 866
 867                         Sequential_music *seq = dynamic_cast<Sequential_music*> ($4);
 868
 869                         if (seq) {
 870                                 int list_len = scm_ilength (seq->music_list ());
 871                                 if (list_len != 2)
 872                                         seq->origin ()->warning ("Chord tremolo must have 2 elements.");
 873                                 shift -= 1;
 874                                 r->compress (Moment (Rational (1, list_len)));
 875                                 }
 876                         scm_call_3 (func, r->self_scm (), scm_int2num (shift),scm_int2num (dots));
 877
 878                 }
 879                 r->set_spot (*$4->origin ());
 880
 881                 $$ = r;
 882         }
 883         ;
 884
 885 Sequential_music:
 886         SEQUENTIAL '{' Music_list '}'           {
 887                 $$ = MY_MAKE_MUSIC ("SequentialMusic");
 888                 $$->set_property ("elements", ly_car ($3));
 889                 $$->set_spot (THIS->here_input ());
 890         }
 891         | '{' Music_list '}'            {
 892                 $$ = MY_MAKE_MUSIC ("SequentialMusic");
 893                 $$->set_property ("elements", ly_car ($2));
 894                 $$->set_spot (THIS->here_input ());
 895         }
 896         ;
 897
 898 Simultaneous_music:
 899         SIMULTANEOUS '{' Music_list '}'{
 900                 $$ = MY_MAKE_MUSIC ("SimultaneousMusic");
 901                 $$->set_property ("elements", ly_car ($3));
 902                 $$->set_spot (THIS->here_input ());
 903
 904         }
 905         | simul_open Music_list simul_close     {
 906                 $$ = MY_MAKE_MUSIC ("SimultaneousMusic");
 907                 $$->set_property ("elements", ly_car ($2));
 908                 $$->set_spot (THIS->here_input ());
 909         }
 910         ;
 911
 912 Simple_music:
 913         event_chord             { $$ = $1; }
 914         | APPLYOUTPUT embedded_scm {
 915                 if (!ly_input_procedure_p ($2))
 916                         THIS->parser_error (_ ("\\applycontext takes function argument"));
 917                 $$ = MY_MAKE_MUSIC ("ApplyOutputEvent");
 918                 $$->set_property ("procedure", $2);
 919                 $$->set_spot (THIS->here_input ());
 920         }
 921         | APPLYCONTEXT embedded_scm {
 922                 if (!ly_input_procedure_p ($2))
 923                         THIS->parser_error (_ ("\\applycontext takes function argument"));
 924                 $$ = MY_MAKE_MUSIC ("ApplyContext");
 925                 $$->set_property ("procedure", $2);
 926                 $$->set_spot (THIS->here_input ());
 927         }
 928         | MUSIC_IDENTIFIER {
 929                 $$ = unsmob_music ($1);
 930         }
 931         | music_property_def
 932         | context_change
 933         ;
 934
 935
 936 optional_context_mod:
 937         /**/ { $$ = SCM_EOL; }
 938         | WITH { THIS->lexer_->push_initial_state (); }
 939         '{' context_mod_list '}'
 940         {
 941                 THIS->lexer_->pop_state ();
 942                 $$ = $4;
 943         }
 944         ;
 945
 946 grace_head:
 947         GRACE  { $$ = scm_makfrom0str ("Grace"); }
 948         | ACCIACCATURA { $$ = scm_makfrom0str ("Acciaccatura"); }
 949         | APPOGGIATURA { $$ = scm_makfrom0str ("Appoggiatura"); }
 950         ;
 951
 952 context_mod_list:
 953         /* */  { $$ = SCM_EOL; }
 954         | context_mod_list context_mod  {
 955                  $$ = scm_cons ($2, $1);
 956         }
 957         ;
 958
 959
 960 Composite_music:
 961         Prefix_composite_music { $$ = $1; }
 962         | Grouped_music_list { $$ = $1; }
 963         ;
 964
 965 Grouped_music_list:
 966         Simultaneous_music              { $$ = $1; }
 967         | Sequential_music              { $$ = $1; }
 968         ;
 969
 970 Generic_prefix_music_scm:
 971         MUSIC_FUNCTION_SCM {
 972                 THIS->push_spot ();
 973         } embedded_scm {
 974                 $$ = scm_list_3 ($1, make_input (THIS->pop_spot ()), $3);
 975         }
 976         | MUSIC_FUNCTION_MUSIC {
 977                 THIS->push_spot ();
 978         } Music {
 979                 $$ = scm_list_3 ($1, make_input (THIS->pop_spot ()), $3->self_scm ());
 980                 scm_gc_unprotect_object ($3->self_scm ());
 981         }
 982         | MUSIC_FUNCTION_SCM_MUSIC {
 983                 THIS->push_spot ();
 984         }  embedded_scm Music {
 985                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3, $4->self_scm ());
 986                 scm_gc_unprotect_object ($4->self_scm ());
 987         }
 988         | MUSIC_FUNCTION_MUSIC_MUSIC {
 989                 THIS->push_spot ();
 990         }  Music  Music {
 991                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3->self_scm (), $4->self_scm ());
 992                 scm_gc_unprotect_object ($3->self_scm ());
 993                 scm_gc_unprotect_object ($4->self_scm ());
 994         }
 995         | MUSIC_FUNCTION_SCM_MUSIC_MUSIC {
 996                 THIS->push_spot ();
 997         } embedded_scm Music Music {
 998                 $$ = scm_list_5 ($1, make_input (THIS->pop_spot ()),
 999                         $3, $4->self_scm (), $5->self_scm ());
1000                 scm_gc_unprotect_object ($5->self_scm ());
1001                 scm_gc_unprotect_object ($4->self_scm ());
1002         }
1003         ;
1004
1005 Generic_prefix_music:
1006         Generic_prefix_music_scm {
1007                 SCM func = ly_car ($1);
1008                 Input *loc = unsmob_input (ly_cadr ($1));
1009                 SCM args = ly_cddr ($1);
1010                 SCM sig = scm_object_property (func, ly_symbol2scm ("music-function-signature"));
1011                 int k = 0;
1012                 bool ok  = true;
1013                 for (SCM s = sig, t = args;
1014                         ok && ly_c_pair_p (s) && ly_c_pair_p (t);
1015                         s = ly_cdr (s), t = ly_cdr (t)) {
1016                         k++;
1017                         if (scm_call_1 (ly_car (s), ly_car (t)) != SCM_BOOL_T)
1018                         {
1019                                 loc->error (_f ("Argument %d failed typecheck", k));
1020                                 THIS->error_level_ = 1;
1021                                 ok = false;
1022                         }
1023                 }
1024                 SCM m = SCM_EOL;
1025                 if (ok)
1026                         m = scm_apply_0 (func, ly_cdr ($1));
1027                 if (unsmob_music (m))
1028                         {
1029                         $$ = unsmob_music (m);
1030                         scm_gc_protect_object (m);
1031                         }
1032                 else
1033                         {
1034                         if (ok)
1035                                 loc->error (_ ("Music head function should return Music object."));
1036                         $$ = MY_MAKE_MUSIC ("Music");
1037                         }
1038                 $$->set_spot (*loc);
1039         }
1040         ;
1041
1042
1043 Prefix_composite_music:
1044         Generic_prefix_music {
1045                 $$ = $1;
1046         }
1047         |AUTOCHANGE Music       {
1048                 SCM proc = ly_scheme_function ("make-autochange-music");
1049
1050                 SCM res = scm_call_1 (proc, $2->self_scm ());
1051                 scm_gc_unprotect_object ($2->self_scm ());
1052                 $$ = unsmob_music (res);
1053                 scm_gc_protect_object (res);
1054                 $$->set_spot (THIS->here_input ());
1055         }
1056         | PARTCOMBINE Music Music {
1057                 SCM proc = ly_scheme_function ("make-part-combine-music");
1058
1059                 SCM res = scm_call_1 (proc, scm_listify ($2->self_scm (),
1060                         $3->self_scm (), SCM_UNDEFINED));
1061                 scm_gc_unprotect_object ($3->self_scm ());
1062                 scm_gc_unprotect_object ($2->self_scm ());
1063                 $$ = unsmob_music (res);
1064                 scm_gc_protect_object (res);
1065                 $$->set_spot (THIS->here_input ());
1066         }
1067         | grace_head Music {
1068 #if 1
1069         /*
1070                 The other version is for easier debugging  of
1071                 Sequential_music_iterator in combination with grace notes.
1072         */
1073
1074 /*
1075
1076 TODO: should distinguish between both grace types in the
1077 basic music objects too, since the meaning is different.
1078
1079 */
1080
1081                 String start_str = "start" + ly_scm2string ($1) + "Music";
1082                 String stop_str = "stop" + ly_scm2string ($1) + "Music";
1083
1084                 SCM start = THIS->lexer_->lookup_identifier (start_str);
1085                 SCM stop = THIS->lexer_->lookup_identifier (stop_str);
1086
1087                 Music *startm = unsmob_music (start);
1088                 Music *stopm = unsmob_music (stop);
1089
1090                 SCM ms = SCM_EOL;
1091                 if (stopm) {
1092                         stopm = stopm->clone ();
1093                         ms = scm_cons (stopm->self_scm (), ms);
1094                         scm_gc_unprotect_object (stopm->self_scm ());
1095                 }
1096                 ms = scm_cons ($2->self_scm (), ms);
1097                 scm_gc_unprotect_object ($2->self_scm ());
1098                 if (startm) {
1099                         startm = startm->clone ();
1100                         ms = scm_cons (startm->self_scm (), ms);
1101                         scm_gc_unprotect_object (startm->self_scm ());
1102                 }
1103
1104                 Music* seq = MY_MAKE_MUSIC ("SequentialMusic");
1105                 seq->set_property ("elements", ms);
1106
1107
1108                 $$ = MY_MAKE_MUSIC ("GraceMusic");
1109                 $$->set_property ("element", seq->self_scm ());
1110                 scm_gc_unprotect_object (seq->self_scm ());
1111 #else
1112                 $$ = MY_MAKE_MUSIC ("GraceMusic");
1113                 $$->set_property ("element", $2->self_scm ());
1114                 scm_gc_unprotect_object ($2->self_scm ());
1115 #endif
1116         }
1117         | CONTEXT simple_string '=' simple_string optional_context_mod Music {
1118                 $$ = context_spec_music ($2, $4, $6, $5);
1119
1120         }
1121         | CONTEXT simple_string optional_context_mod Music {
1122                 $$ = context_spec_music ($2, SCM_UNDEFINED, $4, $3);
1123         }
1124         | NEWCONTEXT simple_string optional_context_mod Music {
1125                 $$ = context_spec_music ($2, get_next_unique_context (), $4,
1126                         $3);
1127         }
1128
1129         | TIMES {
1130                 THIS->push_spot ();
1131         }
1132         /* CONTINUED */
1133                 fraction Music
1134
1135         {
1136                 int n = ly_scm2int (ly_car ($3)); int d = ly_scm2int (ly_cdr ($3));
1137                 Music *mp = $4;
1138
1139                 $$= MY_MAKE_MUSIC ("TimeScaledMusic");
1140                 $$->set_spot (THIS->pop_spot ());
1141
1142                 $$->set_property ("element", mp->self_scm ());
1143                 scm_gc_unprotect_object (mp->self_scm ());
1144                 $$->set_property ("numerator", scm_int2num (n));
1145                 $$->set_property ("denominator", scm_int2num (d));
1146                 $$->compress (Moment (Rational (n,d)));
1147
1148         }
1149         | Repeated_music                { $$ = $1; }
1150         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords Music {
1151                 $$ = MY_MAKE_MUSIC ("TransposedMusic");
1152                 Music *p = $4;
1153                 Pitch from = *unsmob_pitch ($2);
1154                 Pitch to = *unsmob_pitch ($3);
1155
1156                 p->transpose (interval (from, to));
1157                 $$->set_property ("element", p->self_scm ());
1158                 scm_gc_unprotect_object (p->self_scm ());
1159         }
1160         | NOTES
1161                 {
1162                 SCM nn = THIS->lexer_->lookup_identifier ("pitchnames");
1163                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1164         }
1165         Music
1166                 { $$ = $3;
1167                   THIS->lexer_->pop_state ();
1168                 }
1169         | DRUMS
1170                 {
1171                 SCM nn = THIS->lexer_->lookup_identifier ("drumPitchNames");
1172                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1173         }
1174         /* FIXME: This used to be: */
1175         Music
1176 /*      Grouped_music_list */
1177                 { $$ = $3;
1178                   THIS->lexer_->pop_state ();
1179                 }
1180         | FIGURES
1181                 { THIS->lexer_->push_figuredbass_state (); }
1182         /* FIXME: This used to be:
1183         Music
1184         but that breaks web build
1185         */
1186         Grouped_music_list
1187                 {
1188                   Music *chm = MY_MAKE_MUSIC ("UntransposableMusic");
1189                   chm->set_property ("element", $3->self_scm ());
1190                   $$ = chm;
1191                   scm_gc_unprotect_object ($3->self_scm ());
1192
1193                   THIS->lexer_->pop_state ();
1194         }
1195         | CHORDS {
1196                 SCM nn = THIS->lexer_->lookup_identifier ("chordmodifiers");
1197                 THIS->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1198                 nn = THIS->lexer_->lookup_identifier ("pitchnames");
1199                 THIS->lexer_->push_chord_state (alist_to_hashq (nn));
1200
1201         }
1202         /* FIXME:
1203         Music
1204 */
1205         Grouped_music_list
1206         {
1207                   Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
1208                   chm->set_property ("element", $3->self_scm ());
1209                   scm_gc_unprotect_object ($3->self_scm ());
1210                   $$ = chm;
1211
1212                   THIS->lexer_->pop_state ();
1213         }
1214         | LYRICS
1215                 { THIS->lexer_->push_lyric_state (); }
1216         /* FIXME:
1217         Music
1218 */
1219         Grouped_music_list
1220                 {
1221                   $$ = $3;
1222                   THIS->lexer_->pop_state ();
1223         }
1224         | relative_music        { $$ = $1; }
1225         | re_rhythmed_music     { $$ = $1; }
1226         | TAG embedded_scm Music {
1227                 tag_music ($3, $2, THIS->here_input ());
1228                 $$ = $3;
1229         }
1230         ;
1231
1232 relative_music:
1233         RELATIVE absolute_pitch Music {
1234                 Music *m = $3;
1235                 Pitch start = *unsmob_pitch ($2);
1236                 $$ = make_music_relative (start, m);
1237                 scm_gc_unprotect_object (m->self_scm ());
1238         }
1239         | RELATIVE Composite_music {
1240                 Music *m = $2;
1241                 /* FIXME: why is octave==0 and default not middleC? */
1242                 Pitch middle_c (-1, 0, 0);
1243                 $$ = make_music_relative (middle_c, m);
1244                 scm_gc_unprotect_object (m->self_scm ());
1245         }
1246         ;
1247
1248 new_lyrics:
1249         NEWLYRICS { THIS->lexer_->push_lyric_state (); }
1250         /*cont */
1251         Grouped_music_list {
1252         /* Can also use Music at the expensive of two S/Rs similar to
1253            \repeat \alternative */
1254                 THIS->lexer_->pop_state ();
1255 #if 0
1256                 Music *music = MY_MAKE_MUSIC ("SimultaneousMusic");
1257                 music->set_property ("elements", scm_list_1 ($3->self_scm ()));
1258                 $$ = music;
1259 #else
1260                 $$ = scm_cons ($3->self_scm (), SCM_EOL);
1261 #endif
1262         }
1263         | new_lyrics NEWLYRICS { THIS->lexer_->push_lyric_state (); }
1264         Grouped_music_list {
1265                 THIS->lexer_->pop_state ();
1266                 $$ = scm_cons ($4->self_scm (), $1);
1267         }
1268         ;
1269
1270 re_rhythmed_music:
1271         ADDLYRICS Music Music {
1272                 Music *m = MY_MAKE_MUSIC ("LyricCombineMusic");
1273                 m->set_property ("elements", scm_listify ($2->self_scm (),
1274                         $3->self_scm (), SCM_UNDEFINED));
1275                 scm_gc_unprotect_object ($3->self_scm ());
1276                 scm_gc_unprotect_object ($2->self_scm ());
1277                 $$ = m;
1278         }
1279         | Grouped_music_list new_lyrics {
1280
1281                 /* FIXME: should find out uniqueXXX name from music */
1282                 SCM name = $1->get_property ("context-id");
1283                 //if (name == SCM_EOL)
1284                 if (!ly_c_string_p (name))
1285                         name = scm_makfrom0str ("");
1286
1287                 SCM context = scm_makfrom0str ("Lyrics");
1288                 Music *all = MY_MAKE_MUSIC ("SimultaneousMusic");
1289
1290                 SCM lst = SCM_EOL;
1291                 for (SCM s = $2; ly_c_pair_p (s); s = ly_cdr (s))
1292                 {
1293                         Music *music = unsmob_music (ly_car (s));
1294                         Music *com = make_lyric_combine_music (name, music);
1295                         Music *csm = context_spec_music (context,
1296                                 get_next_unique_context (), com, SCM_EOL);
1297                         lst = scm_cons (csm->self_scm (), lst);
1298                 }
1299                 /* FIXME: only first lyric music is accepted,
1300                           the rest is junked */
1301                 all->set_property ("elements", scm_cons ($1->self_scm (),
1302                         lst));
1303                 $$ = all;
1304                 scm_gc_unprotect_object ($1->self_scm ());
1305         }
1306         | LYRICSTO string Music {
1307                 Music *music = $3;
1308                 SCM name = $2;
1309                 $$ = make_lyric_combine_music (name, music);
1310                 scm_gc_unprotect_object (music->self_scm ());
1311         }
1312         ;
1313
1314 context_change:
1315         CHANGE STRING '=' STRING  {
1316                 Music*t= MY_MAKE_MUSIC ("ContextChange");
1317                 t-> set_property ("change-to-type", scm_string_to_symbol ($2));
1318                 t-> set_property ("change-to-id", $4);
1319
1320                 $$ = t;
1321                 $$->set_spot (THIS->here_input ());
1322         }
1323         ;
1324
1325 property_operation:
1326         STRING '=' scalar {
1327                 $$ = scm_list_3 (ly_symbol2scm ("assign"),
1328                         scm_string_to_symbol ($1), $3);
1329         }
1330         | UNSET simple_string {
1331                 $$ = scm_list_2 (ly_symbol2scm ("unset"),
1332                         scm_string_to_symbol ($2));
1333         }
1334         | OVERRIDE simple_string embedded_scm '=' embedded_scm {
1335                 $$ = scm_list_4 (ly_symbol2scm ("push"),
1336                         scm_string_to_symbol ($2), $3, $5);
1337         }
1338         | REVERT simple_string embedded_scm {
1339                 $$ = scm_list_3 (ly_symbol2scm ("pop"),
1340                         scm_string_to_symbol ($2), $3);
1341         }
1342         ;
1343
1344 context_def_mod:
1345         CONSISTSEND { $$ = ly_symbol2scm ("consists-end"); }
1346         | CONSISTS { $$ = ly_symbol2scm ("consists"); }
1347         | REMOVE { $$ = ly_symbol2scm ("remove"); }
1348
1349         | ACCEPTS { $$ = ly_symbol2scm ("accepts"); }
1350         | DENIES { $$ = ly_symbol2scm ("denies"); }
1351
1352         | ALIAS { $$ = ly_symbol2scm ("alias"); }
1353         | TYPE { $$ = ly_symbol2scm ("translator-type"); }
1354         | DESCRIPTION { $$ = ly_symbol2scm ("description"); }
1355         | NAME { $$ = ly_symbol2scm ("context-name"); }
1356         ;
1357
1358 context_mod:
1359         property_operation { $$ = $1; }
1360         | context_def_mod STRING {
1361                 $$ = scm_list_2 ($1, $2);
1362         }
1363         ;
1364
1365 context_prop_spec:
1366         simple_string {
1367                 $$ = scm_list_2 (ly_symbol2scm ("Bottom"),
1368                         scm_string_to_symbol ($1));
1369         }
1370         | simple_string '.' simple_string {
1371                 $$ = scm_list_2 (scm_string_to_symbol ($1),
1372                         scm_string_to_symbol ($3));
1373         }
1374         ;
1375
1376 music_property_def:
1377         OVERRIDE context_prop_spec embedded_scm '=' scalar {
1378                 $$ = property_op_to_music (scm_list_4 (
1379                         ly_symbol2scm ("poppush"),
1380                         ly_cadr ($2),
1381                         $3, $5));
1382                 $$= context_spec_music (ly_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1383         }
1384         | REVERT context_prop_spec embedded_scm {
1385                 $$ = property_op_to_music (scm_list_3 (
1386                         ly_symbol2scm ("pop"),
1387                         ly_cadr ($2),
1388                         $3));
1389
1390                 $$= context_spec_music (ly_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1391         }
1392         | SET context_prop_spec '=' scalar {
1393                 $$ = property_op_to_music (scm_list_3 (
1394                         ly_symbol2scm ("assign"),
1395                         ly_cadr ($2),
1396                         $4));
1397                 $$= context_spec_music (ly_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1398         }
1399         | UNSET context_prop_spec {
1400                 $$ = property_op_to_music (scm_list_2 (
1401                         ly_symbol2scm ("unset"),
1402                         ly_cadr ($2)));
1403                 $$= context_spec_music (ly_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1404         }
1405         | ONCE music_property_def {
1406                 SCM e = $2->get_property ("element");
1407                 unsmob_music (e)->set_property ("once", SCM_BOOL_T);
1408                 $$ = $2;
1409
1410         }
1411         ;
1412
1413
1414 string:
1415         STRING {
1416                 $$ = $1;
1417         }
1418         | STRING_IDENTIFIER {
1419                 $$ = $1;
1420         }
1421         | string '+' string {
1422                 $$ = scm_string_append (scm_list_2 ($1, $3));
1423         }
1424         ;
1425
1426 simple_string: STRING {
1427         }
1428         | LYRICS_STRING {
1429         }
1430         ;
1431
1432 scalar: string {
1433         }
1434         | LYRICS_STRING {
1435         }
1436         | bare_int {
1437                 $$ = scm_int2num ($1);
1438         }
1439         | embedded_scm {
1440         }
1441         | full_markup {
1442         }
1443         | DIGIT {
1444                 $$ = scm_int2num ($1);
1445         }
1446         ;
1447
1448 /*
1449 FIXME: remove or fix this comment.  What is `This'?
1450
1451 This is a trick:
1452
1453 Adding pre_events to the simple_element
1454 makes the choice between
1455
1456   string:  STRING
1457
1458 and
1459
1460   simple_element: STRING
1461
1462 a single shift/reduction conflict.
1463
1464 nevertheless, this is not very clean, and we should find a different
1465 solution.
1466
1467 */
1468 pre_events: {
1469                 THIS->push_spot ();
1470         }
1471         ;
1472
1473 event_chord:
1474         pre_events simple_element post_events   {
1475                 SCM elts = $2-> get_property ("elements");
1476
1477                 elts = ly_append2 (elts, scm_reverse_x ($3, SCM_EOL));
1478
1479                 $2->set_property ("elements", elts);
1480                 $$ = $2;
1481         }
1482         | command_element
1483         | note_chord_element
1484         ;
1485
1486
1487 note_chord_element:
1488         chord_body optional_notemode_duration post_events
1489         {
1490                 SCM dur = unsmob_duration ($2)->smobbed_copy ();
1491                 SCM es = $1->get_property ("elements");
1492                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1493
1494                 for (SCM s = es; ly_c_pair_p (s); s = ly_cdr (s))
1495                   unsmob_music (ly_car (s))->set_property ("duration", dur);
1496                 es = ly_append2 (es, postevs);
1497
1498                 $1-> set_property ("elements", es);
1499                 $$ = $1;
1500         }
1501         ;
1502
1503 chord_open: '<'
1504         ;
1505
1506 chord_close: '>'
1507         ;
1508
1509 simul_open: DOUBLE_ANGLE_OPEN
1510         ;
1511
1512 simul_close: DOUBLE_ANGLE_CLOSE
1513         ;
1514
1515 chord_body:
1516         chord_open chord_body_elements chord_close
1517         {
1518                 $$ = MY_MAKE_MUSIC ("EventChord");
1519                 $$->set_property ("elements",
1520                         scm_reverse_x ($2, SCM_EOL));
1521         }
1522         ;
1523
1524 chord_body_elements:
1525         /* empty */             { $$ = SCM_EOL; }
1526         | chord_body_elements chord_body_element {
1527                 $$ = scm_cons ($2->self_scm (), $1);
1528                 scm_gc_unprotect_object ($2->self_scm ());
1529         }
1530         ;
1531
1532 chord_body_element:
1533         pitch exclamations questions post_events
1534         {
1535                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
1536                 n->set_property ("pitch", $1);
1537                 if ($3 % 2)
1538                         n->set_property ("cautionary", SCM_BOOL_T);
1539                 if ($2 % 2 || $3 % 2)
1540                         n->set_property ("force-accidental", SCM_BOOL_T);
1541
1542                 if (ly_c_pair_p ($4)) {
1543                         SCM arts = scm_reverse_x ($4, SCM_EOL);
1544                         n->set_property ("articulations", arts);
1545                 }
1546                 $$ = n;
1547         }
1548         | DRUM_PITCH post_events {
1549                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
1550                 n->set_property ("duration", $2);
1551                 n->set_property ("drum-type", $1);
1552                 n->set_spot (THIS->here_input ());
1553
1554                 if (ly_c_pair_p ($2)) {
1555                         SCM arts = scm_reverse_x ($2, SCM_EOL);
1556                         n->set_property ("articulations", arts);
1557                 }
1558                 $$ = n;
1559         }
1560         ;
1561
1562 add_quote:
1563         ADDQUOTE string Music {
1564                 SCM adder = ly_scheme_function ("add-quotable");
1565
1566                 scm_call_2 (adder, $2, $3->self_scm ());
1567                 scm_gc_unprotect_object ($3->self_scm ());
1568         }
1569         ;
1570
1571 command_element:
1572         command_req {
1573                 $$ = MY_MAKE_MUSIC ("EventChord");
1574                 $$->set_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1575                 scm_gc_unprotect_object ($1->self_scm ());
1576
1577                 $$-> set_spot (THIS->here_input ());
1578                 $1-> set_spot (THIS->here_input ());
1579         }
1580         | SKIP duration_length {
1581                 Music *skip = MY_MAKE_MUSIC ("SkipMusic");
1582                 skip->set_property ("duration", $2);
1583
1584                 $$ = skip;
1585         }
1586         | QUOTE STRING duration_length {
1587                 SCM tab = THIS->lexer_->lookup_identifier ("musicQuotes");
1588                 SCM evs = SCM_EOL;
1589                 if (scm_hash_table_p (tab) == SCM_BOOL_T)
1590                 {
1591                         SCM key = $2; // use symbol?
1592                         evs = scm_hash_ref (tab, key, SCM_BOOL_F);
1593                 }
1594                 Music *quote = 0;
1595                 if (ly_c_vector_p (evs))
1596                 {
1597                         quote = MY_MAKE_MUSIC ("QuoteMusic");
1598                         quote->set_property ("duration", $3);
1599                         quote->set_property ("quoted-events", evs);
1600                 } else {
1601                         THIS->here_input ().warning (_f ("Can\'t find music"));
1602                         quote = MY_MAKE_MUSIC ("Event");
1603                 }
1604                 quote->set_spot (THIS->here_input ());
1605                 $$ = quote;
1606         }
1607         | OCTAVE { THIS->push_spot (); }
1608           pitch {
1609                 Music *m = MY_MAKE_MUSIC ("RelativeOctaveCheck");
1610                 $$ = m;
1611                 $$->set_spot (THIS->pop_spot ());
1612                 $$->set_property ("pitch", $3);
1613         }
1614         | E_LEFTSQUARE {
1615                 Music *m = MY_MAKE_MUSIC ("LigatureEvent");
1616                 m->set_property ("span-direction", scm_int2num (START));
1617                 m->set_spot (THIS->here_input ());
1618
1619                 $$ = MY_MAKE_MUSIC ("EventChord");
1620                 $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
1621                 scm_gc_unprotect_object (m->self_scm ());
1622                 $$->set_spot (THIS->here_input ());
1623         }
1624         | E_RIGHTSQUARE {
1625                 Music *m = MY_MAKE_MUSIC ("LigatureEvent");
1626                 m->set_property ("span-direction", scm_int2num (STOP));
1627                 m->set_spot (THIS->here_input ());
1628
1629                 $$ = MY_MAKE_MUSIC ("EventChord");
1630                 $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
1631                 $$->set_spot (THIS->here_input ());
1632                 scm_gc_unprotect_object (m->self_scm ());
1633         }
1634         | E_BACKSLASH {
1635                 $$ = MY_MAKE_MUSIC ("VoiceSeparator");
1636                 $$->set_spot (THIS->here_input ());
1637         }
1638         | '|'      {
1639                 SCM pipe =THIS->lexer_->lookup_identifier ("pipeSymbol");
1640
1641                 if (Music * m = unsmob_music (pipe))
1642                         $$ = m->clone ();
1643                 else
1644                         $$ = MY_MAKE_MUSIC ("BarCheck");
1645
1646                 $$->set_spot (THIS->here_input ());
1647         }
1648         | TRANSPOSITION pitch {
1649                 $$ = set_property_music (ly_symbol2scm ("instrumentTransposition"),
1650                                         $2);
1651                 $$->set_spot (THIS-> here_input ());
1652                 $$ = context_spec_music (ly_symbol2scm ("Staff"), SCM_UNDEFINED,
1653                         $$, SCM_EOL);
1654         }
1655         | BAR STRING                    {
1656                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1657
1658                 Music *csm = context_spec_music (ly_symbol2scm ("Timing"), SCM_UNDEFINED,
1659                                         t, SCM_EOL);
1660                 $$ = context_spec_music (ly_symbol2scm ("Score"), SCM_UNDEFINED, csm, SCM_EOL);
1661                 $$->set_spot (THIS->here_input ());
1662                 t->set_spot (THIS->here_input ());
1663         }
1664         | PARTIAL duration_length       {
1665                 Moment m = - unsmob_duration ($2)->get_length ();
1666                 Music *p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1667                 p->set_spot (THIS->here_input ());
1668                 p = context_spec_music (ly_symbol2scm ("Timing"), SCM_UNDEFINED,
1669                                         p, SCM_EOL);
1670                 p = context_spec_music (ly_symbol2scm ("Score"), SCM_UNDEFINED,
1671                                         p, SCM_EOL);
1672                 $$ = p;
1673         }
1674         | CLEF STRING  {
1675                 SCM proc = ly_scheme_function ("make-clef-set");
1676
1677                 SCM result = scm_call_1 (proc, $2);
1678                 scm_gc_protect_object (result);
1679                 $$ = unsmob_music (result);
1680         }
1681         | TIME_T fraction  {
1682                 SCM proc= ly_scheme_function ("make-time-signature-set");
1683
1684                 SCM result = scm_apply_2   (proc, ly_car ($2), ly_cdr ($2), SCM_EOL);
1685                 scm_gc_protect_object (result);
1686                 $$ = unsmob_music (result);
1687         }
1688         | MARK scalar {
1689                 SCM proc = ly_scheme_function ("make-mark-set");
1690
1691                 SCM result = scm_call_1 (proc, $2);
1692                 scm_gc_protect_object (result);
1693                 $$ = unsmob_music (result);
1694         }
1695         ;
1696
1697 command_req:
1698         BREATHE {
1699                 $$ = MY_MAKE_MUSIC ("BreathingSignEvent");
1700         }
1701         | E_TILDE {
1702                 $$ = MY_MAKE_MUSIC ("PesOrFlexaEvent");
1703         }
1704         | MARK DEFAULT  {
1705                 Music *m = MY_MAKE_MUSIC ("MarkEvent");
1706                 $$ = m;
1707         }
1708         | tempo_event {
1709                 $$ = $1;
1710         }
1711         | KEY DEFAULT {
1712                 Music *key= MY_MAKE_MUSIC ("KeyChangeEvent");
1713                 $$ = key;
1714         }
1715         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1716
1717                 Music *key= MY_MAKE_MUSIC ("KeyChangeEvent");
1718                 if (scm_ilength ($3) > 0)
1719                 {
1720                         key->set_property ("pitch-alist", $3);
1721                         key->set_property ("tonic", Pitch (0,0,0).smobbed_copy ());
1722                         ((Music*)key)->transpose (* unsmob_pitch ($2));
1723                 } else {
1724                         THIS->parser_error (_ ("Second argument must be pitch list."));
1725                 }
1726
1727                 $$ = key;
1728         }
1729         ;
1730
1731 post_events:
1732         /* empty */ {
1733                 $$ = SCM_EOL;
1734         }
1735         | post_events post_event {
1736                 $2->set_spot (THIS->here_input ());
1737                 $$ = scm_cons ($2->self_scm (), $$);
1738                 scm_gc_unprotect_object ($2->self_scm ());
1739         }
1740         | post_events tagged_post_event {
1741                 $2 -> set_spot (THIS->here_input ());
1742                 $$ = scm_cons ($2->self_scm (), $$);
1743                 scm_gc_unprotect_object ($2->self_scm ());
1744         }
1745         ;
1746
1747
1748 tagged_post_event:
1749         '-' TAG embedded_scm post_event {
1750                 tag_music ($4, $3, THIS->here_input ());
1751                 $$ = $4;
1752         }
1753         ;
1754
1755 post_event:
1756         direction_less_event {
1757                 $$ = $1;
1758         }
1759         | HYPHEN {
1760                 if (!THIS->lexer_->is_lyric_state ())
1761                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1762                 $$ = MY_MAKE_MUSIC ("HyphenEvent");
1763         }
1764         | EXTENDER {
1765                 if (!THIS->lexer_->is_lyric_state ())
1766                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1767                 $$ = MY_MAKE_MUSIC ("ExtenderEvent");
1768         }
1769         | script_dir direction_reqd_event {
1770                 if ($1)
1771                         $2->set_property ("direction", scm_int2num ($1));
1772                 $$ = $2;
1773         }
1774         | script_dir direction_less_event {
1775                 if ($1)
1776                         $2->set_property ("direction", scm_int2num ($1));
1777                 $$ = $2;
1778         }
1779         | string_number_event
1780         ;
1781
1782 string_number_event:
1783         E_UNSIGNED {
1784                 Music *s = MY_MAKE_MUSIC ("StringNumberEvent");
1785                 s->set_property ("string-number", scm_int2num ($1));
1786                 s->set_spot (THIS->here_input ());
1787                 $$ = s;
1788         }
1789         ;
1790
1791
1792 direction_less_event:
1793         '['  {
1794
1795
1796 /*
1797
1798 TODO: should take all these defs out of the parser, adn make use
1799 configurable, i.e.
1800
1801
1802 (set-articulation '~ "trill")
1803
1804 */
1805                 Music *m = MY_MAKE_MUSIC ("BeamEvent");
1806                 m->set_spot (THIS->here_input ());
1807                 m->set_property ("span-direction", scm_int2num (START));
1808                 $$ = m;
1809         }
1810         | ']'  {
1811                 Music *m = MY_MAKE_MUSIC ("BeamEvent");
1812                 m->set_spot (THIS->here_input ());
1813                 m->set_property ("span-direction", scm_int2num (STOP));
1814                 $$ = m;
1815         }
1816         | '~' {
1817                 Music *m = MY_MAKE_MUSIC ("TieEvent");
1818                 m->set_spot (THIS->here_input ());
1819                 $$ = m;
1820         }
1821         | close_event {
1822                 $$ = $1;
1823                 dynamic_cast<Music *> ($$)->set_property ("span-direction",
1824                         scm_int2num (START));
1825         }
1826         | open_event {
1827                 $$ = $1;
1828                 dynamic_cast<Music *> ($$)->set_property ("span-direction",
1829                         scm_int2num (STOP));
1830         }
1831         | EVENT_IDENTIFIER      {
1832                 $$ = unsmob_music ($1);
1833         }
1834         | tremolo_type  {
1835                Music *a = MY_MAKE_MUSIC ("TremoloEvent");
1836                a->set_spot (THIS->here_input ());
1837                a->set_property ("tremolo-type", scm_int2num ($1));
1838                $$ = a;
1839         }
1840         ;
1841
1842 direction_reqd_event:
1843         gen_text_def {
1844                 $$ = $1;
1845         }
1846         | script_abbreviation {
1847                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1848                 Music *a = MY_MAKE_MUSIC ("ArticulationEvent");
1849                 if (ly_c_string_p (s))
1850                         a->set_property ("articulation-type", s);
1851                 else THIS->parser_error (_ ("Expecting string as script definition"));
1852                 $$ = a;
1853         }
1854         ;
1855
1856 oct_check:
1857         /**/ { $$ = SCM_EOL; }
1858         | '='  { $$ = scm_int2num (0); }
1859         | '=' sub_quotes { $$ = scm_int2num ($2); }
1860         | '=' sup_quotes { $$ = scm_int2num ($2); }
1861         ;
1862
1863 sup_quotes:
1864         '\'' {
1865                 $$ = 1;
1866         }
1867         | sup_quotes '\'' {
1868                 $$ ++;
1869         }
1870         ;
1871
1872 sub_quotes:
1873         ',' {
1874                 $$ = 1;
1875         }
1876         | sub_quotes ',' {
1877                 $$++;
1878         }
1879         ;
1880
1881 steno_pitch:
1882         NOTENAME_PITCH  {
1883                 $$ = $1;
1884         }
1885         | NOTENAME_PITCH sup_quotes     {
1886                 Pitch p = *unsmob_pitch ($1);
1887                 p = p.transposed (Pitch ($2,0,0));
1888                 $$ = p.smobbed_copy ();
1889         }
1890         | NOTENAME_PITCH sub_quotes      {
1891                 Pitch p =* unsmob_pitch ($1);
1892                 p = p.transposed (Pitch (-$2,0,0));
1893                 $$ = p.smobbed_copy ();
1894         }
1895         ;
1896
1897 /*
1898 ugh. duplication
1899 */
1900
1901 steno_tonic_pitch:
1902         TONICNAME_PITCH {
1903                 $$ = $1;
1904         }
1905         | TONICNAME_PITCH sup_quotes    {
1906                 Pitch p = *unsmob_pitch ($1);
1907                 p = p.transposed (Pitch ($2,0,0));
1908                 $$ = p.smobbed_copy ();
1909         }
1910         | TONICNAME_PITCH sub_quotes     {
1911                 Pitch p =* unsmob_pitch ($1);
1912
1913                 p = p.transposed (Pitch (-$2,0,0));
1914                 $$ = p.smobbed_copy ();
1915         }
1916         ;
1917
1918 pitch:
1919         steno_pitch {
1920                 $$ = $1;
1921         }
1922         ;
1923
1924 pitch_also_in_chords:
1925         pitch
1926         | steno_tonic_pitch
1927         ;
1928
1929 close_event:
1930         '('     {
1931                 Music *s = MY_MAKE_MUSIC ("SlurEvent");
1932                 $$ = s;
1933                 s->set_spot (THIS->here_input ());
1934         }
1935         | E_OPEN        {
1936                 Music *s = MY_MAKE_MUSIC ("PhrasingSlurEvent");
1937                 $$ = s;
1938                 s->set_spot (THIS->here_input ());
1939         }
1940         | E_SMALLER {
1941                 Music *s = MY_MAKE_MUSIC ("CrescendoEvent");
1942                 $$ = s;
1943                 s->set_spot (THIS->here_input ());
1944         }
1945         | E_BIGGER {
1946                 Music *s = MY_MAKE_MUSIC ("DecrescendoEvent");
1947                 $$ = s;
1948                 s->set_spot (THIS->here_input ());
1949         }
1950         ;
1951
1952
1953 open_event:
1954         E_EXCLAMATION   {
1955                 Music *s = MY_MAKE_MUSIC ("CrescendoEvent");
1956                 s->set_spot (THIS->here_input ());
1957
1958                 $$ = s;
1959         }
1960         | ')'   {
1961                 Music *s= MY_MAKE_MUSIC ("SlurEvent");
1962                 $$ = s;
1963                 s->set_spot (THIS->here_input ());
1964
1965         }
1966         | E_CLOSE       {
1967                 Music *s= MY_MAKE_MUSIC ("PhrasingSlurEvent");
1968                 $$ = s;
1969                 s->set_property ("span-type",
1970                         scm_makfrom0str ("phrasing-slur"));
1971                 s->set_spot (THIS->here_input ());
1972         }
1973         ;
1974
1975 gen_text_def:
1976         full_markup {
1977                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent");
1978                 t->set_property ("text", $1);
1979                 t->set_spot (THIS->here_input ());
1980                 $$ = t;
1981         }
1982         | string {
1983                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent");
1984                 t->set_property ("text",
1985                         make_simple_markup (THIS->lexer_->encoding (), $1));
1986                 t->set_spot (THIS->here_input ());
1987                 $$ = t;
1988
1989         }
1990         | DIGIT {
1991                 Music *t = MY_MAKE_MUSIC ("FingerEvent");
1992                 t->set_property ("digit", scm_int2num ($1));
1993                 t->set_spot (THIS->here_input ());
1994                 $$ = t;
1995         }
1996         ;
1997
1998 script_abbreviation:
1999         '^'             {
2000                 $$ = scm_makfrom0str ("Hat");
2001         }
2002         | '+'           {
2003                 $$ = scm_makfrom0str ("Plus");
2004         }
2005         | '-'           {
2006                 $$ = scm_makfrom0str ("Dash");
2007         }
2008         | '|'           {
2009                 $$ = scm_makfrom0str ("Bar");
2010         }
2011         | '>'           {
2012                 $$ = scm_makfrom0str ("Larger");
2013         }
2014         | '.'           {
2015                 $$ = scm_makfrom0str ("Dot");
2016         }
2017         | '_' {
2018                 $$ = scm_makfrom0str ("Underscore");
2019         }
2020         ;
2021
2022 script_dir:
2023         '_'     { $$ = DOWN; }
2024         | '^'   { $$ = UP; }
2025         | '-'   { $$ = CENTER; }
2026         ;
2027
2028
2029 absolute_pitch:
2030         steno_pitch     {
2031                 $$ = $1;
2032         }
2033         ;
2034
2035 duration_length:
2036         multiplied_duration {
2037                 $$ = $1;
2038         }
2039         ;
2040
2041 optional_notemode_duration:
2042         {
2043                 Duration dd = THIS->default_duration_;
2044                 $$ = dd.smobbed_copy ();
2045
2046                 THIS->beam_check ($$);
2047         }
2048         | multiplied_duration   {
2049                 $$ = $1;
2050                 THIS->default_duration_ = *unsmob_duration ($$);
2051
2052                 THIS->beam_check ($$);
2053         }
2054         ;
2055
2056 steno_duration:
2057         bare_unsigned dots              {
2058                 int len = 0;
2059                 if (!is_duration ($1))
2060                         THIS->parser_error (_f ("not a duration: %d", $1));
2061                 else
2062                         len = intlog2 ($1);
2063
2064                 $$ = Duration (len, $2).smobbed_copy ();
2065         }
2066         | DURATION_IDENTIFIER dots      {
2067                 Duration *d = unsmob_duration ($1);
2068                 Duration k (d->duration_log (), d->dot_count () + $2);
2069                 *d = k;
2070                 $$ = $1;
2071         }
2072         ;
2073
2074 multiplied_duration:
2075         steno_duration {
2076                 $$ = $1;
2077         }
2078         | multiplied_duration '*' bare_unsigned {
2079                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
2080         }
2081         | multiplied_duration '*' FRACTION {
2082                 Rational  m (ly_scm2int (ly_car ($3)), ly_scm2int (ly_cdr ($3)));
2083
2084                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
2085         }
2086         ;
2087
2088 fraction:
2089         FRACTION { $$ = $1; }
2090         | UNSIGNED '/' UNSIGNED {
2091                 $$ = scm_cons (scm_int2num ($1), scm_int2num ($3));
2092         }
2093         ;
2094
2095 dots:
2096         /* empty */     {
2097                 $$ = 0;
2098         }
2099         | dots '.' {
2100                 $$ ++;
2101         }
2102         ;
2103
2104 tremolo_type:
2105         ':'     {
2106                 $$ = 0;
2107         }
2108         | ':' bare_unsigned {
2109                 if (!is_duration ($2))
2110                         THIS->parser_error (_f ("not a duration: %d", $2));
2111                 $$ = $2;
2112         }
2113         ;
2114
2115 bass_number:
2116         DIGIT   {
2117                 $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
2118                 $$ = scm_list_2 (ly_scheme_function ("number-markup"),
2119                                 $$);
2120         }
2121         | UNSIGNED {
2122                 $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
2123                 $$ = scm_list_2 (ly_scheme_function ("number-markup"),
2124                                 $$);
2125         }
2126         | STRING { $$ = $1; }
2127         ;
2128
2129 bass_mod:
2130         '-'     { $$ = -2; }
2131         | '+'   { $$ = 2; }
2132         | '!'   { $$ = 0; }
2133         ;
2134
2135 bass_figure:
2136         FIGURE_SPACE {
2137                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
2138                 $$ = bfr->self_scm ();
2139                 scm_gc_unprotect_object ($$);
2140         }
2141         | bass_number  {
2142                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
2143                 $$ = bfr->self_scm ();
2144
2145                 bfr->set_property ("figure", $1);
2146
2147                 scm_gc_unprotect_object ($$);
2148         }
2149         | bass_figure bass_mod {
2150                 Music *m = unsmob_music ($1);
2151                 if ($2) {
2152                         SCM salter = m->get_property ("alteration");
2153                         int alter = ly_c_number_p (salter) ? ly_scm2int (salter) : 0;
2154                         m->set_property ("alteration",
2155                                 scm_int2num (alter + $2));
2156                 } else {
2157                         m->set_property ("alteration", scm_int2num (0));
2158                 }
2159         }
2160         ;
2161
2162 br_bass_figure:
2163         '[' bass_figure {
2164                 $$ = $2;
2165                 unsmob_music ($$)->set_property ("bracket-start", SCM_BOOL_T);
2166         }
2167         | bass_figure   {
2168                 $$ = $1;
2169         }
2170         | br_bass_figure ']' {
2171                 $$ = $1;
2172                 unsmob_music ($1)->set_property ("bracket-stop", SCM_BOOL_T);
2173         }
2174         ;
2175
2176 figure_list:
2177         /**/            {
2178                 $$ = SCM_EOL;
2179         }
2180         | figure_list br_bass_figure {
2181                 $$ = scm_cons ($2, $1);
2182         }
2183         ;
2184
2185 figure_spec:
2186         FIGURE_OPEN figure_list FIGURE_CLOSE {
2187                 Music *m = MY_MAKE_MUSIC ("EventChord");
2188                 $2 = scm_reverse_x ($2, SCM_EOL);
2189                 m->set_property ("elements", $2);
2190                 $$ = m->self_scm ();
2191         }
2192         ;
2193
2194
2195 optional_rest:
2196         /**/   { $$ = 0; }
2197         | REST { $$ = 1; }
2198         ;
2199
2200 simple_element:
2201         pitch exclamations questions oct_check optional_notemode_duration optional_rest {
2202
2203                 Input i = THIS->pop_spot ();
2204                 if (!THIS->lexer_->is_note_state ())
2205                         THIS->parser_error (_ ("Have to be in Note mode for notes"));
2206
2207                 Music *n = 0;
2208                 if ($6)
2209                         n = MY_MAKE_MUSIC ("RestEvent");
2210                 else
2211                         n = MY_MAKE_MUSIC ("NoteEvent");
2212
2213                 n->set_property ("pitch", $1);
2214                 n->set_property ("duration", $5);
2215
2216                 if (ly_c_number_p ($4))
2217                 {
2218                         int q = ly_scm2int ($4);
2219                         n->set_property ("absolute-octave", scm_int2num (q-1));
2220                 }
2221
2222                 if ($3 % 2)
2223                         n->set_property ("cautionary", SCM_BOOL_T);
2224                 if ($2 % 2 || $3 % 2)
2225                         n->set_property ("force-accidental", SCM_BOOL_T);
2226
2227                 Music *v = MY_MAKE_MUSIC ("EventChord");
2228                 v->set_property ("elements", scm_list_1 (n->self_scm ()));
2229                 scm_gc_unprotect_object (n->self_scm ());
2230
2231                 v->set_spot (i);
2232                 n->set_spot (i);
2233                 $$ = v;
2234         }
2235         | DRUM_PITCH optional_notemode_duration {
2236                 Input i = THIS->pop_spot ();
2237
2238                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
2239                 n->set_property ("duration", $2);
2240                 n->set_property ("drum-type", $1);
2241
2242                 Music *v = MY_MAKE_MUSIC ("EventChord");
2243                 v->set_property ("elements", scm_list_1 (n->self_scm ()));
2244                 scm_gc_unprotect_object (n->self_scm ());
2245                 v->set_spot (i);
2246                 n->set_spot (i);
2247                 $$ = v;
2248
2249         }
2250         | figure_spec optional_notemode_duration {
2251                 Music *m = unsmob_music ($1);
2252                 Input i = THIS->pop_spot ();
2253                 m->set_spot (i);
2254                 for (SCM s = m->get_property ("elements"); ly_c_pair_p (s); s = ly_cdr (s))
2255                 {
2256                         unsmob_music (ly_car (s))->set_property ("duration", $2);
2257                 }
2258                 $$ = m;
2259         }
2260         | RESTNAME optional_notemode_duration           {
2261
2262                 Input i = THIS->pop_spot ();
2263                 Music *ev = 0;
2264                 if (ly_scm2string ($1) == "s") {
2265                         /* Space */
2266                         ev = MY_MAKE_MUSIC ("SkipEvent");
2267                   }
2268                 else {
2269                         ev = MY_MAKE_MUSIC ("RestEvent");
2270
2271                     }
2272                 ev->set_property ("duration", $2);
2273                 ev->set_spot (i);
2274                 Music *velt = MY_MAKE_MUSIC ("EventChord");
2275                 velt->set_property ("elements", scm_list_1 (ev->self_scm ()));
2276                 velt->set_spot (i);
2277
2278                 scm_gc_unprotect_object (ev->self_scm ());
2279
2280                 $$ = velt;
2281         }
2282         | MULTI_MEASURE_REST optional_notemode_duration         {
2283                 THIS->pop_spot ();
2284
2285                 SCM proc = ly_scheme_function ("make-multi-measure-rest");
2286                 SCM mus = scm_call_2 (proc, $2,
2287                         make_input (THIS->here_input ()));
2288                 scm_gc_protect_object (mus);
2289                 $$ = unsmob_music (mus);
2290         }
2291
2292         | lyric_element optional_notemode_duration      {
2293                 Input i = THIS->pop_spot ();
2294                 if (!THIS->lexer_->is_lyric_state ())
2295                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
2296
2297                 Music *lreq = MY_MAKE_MUSIC ("LyricEvent");
2298                 lreq->set_property ("text", $1);
2299                 lreq->set_property ("duration",$2);
2300                 lreq->set_spot (i);
2301                 Music *velt = MY_MAKE_MUSIC ("EventChord");
2302                 velt->set_property ("elements", scm_list_1 (lreq->self_scm ()));
2303
2304                 $$= velt;
2305         }
2306         | new_chord {
2307                 THIS->pop_spot ();
2308
2309                 if (!THIS->lexer_->is_chord_state ())
2310                         THIS->parser_error (_ ("Have to be in Chord mode for chords"));
2311                 $$ = unsmob_music ($1);
2312         }
2313         ;
2314
2315 lyric_element:
2316         /* FIXME: lyric flavoured markup would be better */
2317         full_markup {
2318         }
2319         | LYRICS_STRING {
2320         }
2321         ;
2322
2323 new_chord:
2324         steno_tonic_pitch optional_notemode_duration   {
2325                 $$ = make_chord ($1, $2, SCM_EOL);
2326         }
2327         | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
2328                 SCM its = scm_reverse_x ($4, SCM_EOL);
2329                 $$ = make_chord ($1, $2, scm_cons ($3, its));
2330         }
2331         ;
2332
2333 chord_items:
2334         /**/ {
2335                 $$ = SCM_EOL;
2336         }
2337         | chord_items chord_item {
2338                 $$ = scm_cons ($2, $$);
2339         }
2340         ;
2341
2342 chord_separator:
2343         CHORD_COLON {
2344                 $$ = ly_symbol2scm ("chord-colon");
2345         }
2346         | CHORD_CARET {
2347                 $$ = ly_symbol2scm ("chord-caret");
2348         }
2349         | CHORD_SLASH steno_tonic_pitch {
2350                 $$ = scm_list_2 (ly_symbol2scm ("chord-slash"), $2);
2351         }
2352         | CHORD_BASS steno_tonic_pitch {
2353                 $$ = scm_list_2 (ly_symbol2scm ("chord-bass"), $2);
2354         }
2355         ;
2356
2357 chord_item:
2358         chord_separator {
2359                 $$ = $1;
2360         }
2361         | step_numbers {
2362                 $$ = scm_reverse_x ($1, SCM_EOL);
2363         }
2364         | CHORD_MODIFIER  {
2365                 $$ = $1;
2366         }
2367         ;
2368
2369 step_numbers:
2370         step_number { $$ = scm_cons ($1, SCM_EOL); }
2371         | step_numbers '.' step_number {
2372                 $$ = scm_cons ($3, $$);
2373         }
2374         ;
2375
2376 step_number:
2377         bare_unsigned {
2378                 $$ = make_chord_step ($1, 0);
2379         }
2380         | bare_unsigned '+' {
2381                 $$ = make_chord_step ($1, SHARP);
2382         }
2383         | bare_unsigned CHORD_MINUS {
2384                 $$ = make_chord_step ($1, FLAT);
2385         }
2386         ;
2387
2388 /*
2389         UTILITIES
2390
2391 TODO: should deprecate in favor of Scheme?
2392
2393  */
2394 number_expression:
2395         number_expression '+' number_term {
2396                 $$ = scm_sum ($1, $3);
2397         }
2398         | number_expression '-' number_term {
2399                 $$ = scm_difference ($1, $3);
2400         }
2401         | number_term
2402         ;
2403
2404 number_term:
2405         number_factor {
2406                 $$ = $1;
2407         }
2408         | number_factor '*' number_factor {
2409                 $$ = scm_product ($1, $3);
2410         }
2411         | number_factor '/' number_factor {
2412                 $$ = scm_divide ($1, $3);
2413         }
2414         ;
2415
2416 number_factor:
2417         '-'  number_factor { /* %prec UNARY_MINUS */
2418                 $$ = scm_difference ($2, SCM_UNDEFINED);
2419         }
2420         | bare_number
2421         ;
2422
2423
2424 bare_number:
2425         UNSIGNED        {
2426                 $$ = scm_int2num ($1);
2427         }
2428         | REAL          {
2429                 $$ = $1;
2430         }
2431         | NUMBER_IDENTIFIER             {
2432                 $$ = $1;
2433         }
2434         | REAL NUMBER_IDENTIFIER        {
2435                 $$ = scm_make_real (ly_scm2double ($1) *ly_scm2double ($2));
2436         }
2437         | UNSIGNED NUMBER_IDENTIFIER    {
2438                 $$ = scm_make_real ($1 *ly_scm2double ($2));
2439         }
2440         ;
2441
2442
2443 bare_unsigned:
2444         UNSIGNED {
2445                         $$ = $1;
2446         }
2447         | DIGIT {
2448                 $$ = $1;
2449         }
2450         ;
2451
2452 bare_int:
2453         bare_number {
2454                 if (scm_integer_p ($1) == SCM_BOOL_T)
2455                 {
2456                         int k = ly_scm2int ($1);
2457                         $$ = k;
2458                 } else
2459                 {
2460                         THIS->parser_error (_ ("need integer number arg"));
2461                         $$ = 0;
2462                 }
2463         }
2464         | '-' bare_int {
2465                 $$ = -$2;
2466         }
2467         ;
2468
2469 exclamations:
2470                 { $$ = 0; }
2471         | exclamations '!'      { $$ ++; }
2472         ;
2473
2474 questions:
2475                 { $$ = 0; }
2476         | questions '?' { $$ ++; }
2477         ;
2478
2479
2480
2481 full_markup:
2482         MARKUP_IDENTIFIER {
2483                 $$ = $1;
2484         }
2485         | MARKUP
2486                 { THIS->lexer_->push_markup_state (); }
2487         markup
2488                 { $$ = $3;
2489                   THIS->lexer_->pop_state ();
2490                 }
2491         ;
2492
2493
2494 /*
2495 This should be done more dynamically if possible.
2496 */
2497 markup:
2498         STRING {
2499                 $$ = make_simple_markup (THIS->lexer_->encoding (), $1);
2500         }
2501         | MARKUP_HEAD_EMPTY {
2502                 $$ = scm_list_1 ($1);
2503         }
2504         | MARKUP_HEAD_MARKUP0 markup {
2505                 $$ = scm_list_2 ($1, $2);
2506         }
2507         | MARKUP_HEAD_MARKUP0_MARKUP1 markup markup {
2508                 $$ = scm_list_3 ($1, $2, $3);
2509         }
2510         | MARKUP_HEAD_SCM0_MARKUP1 SCM_T markup {
2511                 $$ = scm_list_3 ($1, $2, $3);
2512         }
2513         | markup_line {
2514                 $$ = $1;
2515         }
2516         | MARKUP_HEAD_LIST0 markup_list {
2517                 $$ = scm_list_2 ($1,$2);
2518         }
2519         | MARKUP_HEAD_SCM0 embedded_scm {
2520                 $$ = scm_list_2 ($1, $2);
2521         }
2522         | MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm markup {
2523                 $$ = scm_list_4 ($1, $2, $3, $4);
2524         }
2525         | MARKUP_HEAD_SCM0_SCM1_SCM2 embedded_scm embedded_scm embedded_scm {
2526                 $$ = scm_list_4 ($1, $2, $3, $4);
2527         }
2528         | MARKUP_HEAD_SCM0_SCM1 embedded_scm embedded_scm {
2529                 $$ = scm_list_3 ($1, $2, $3);
2530         }
2531         | MARKUP_IDENTIFIER {
2532                 $$ = $1;
2533         }
2534         | STRING_IDENTIFIER {
2535                 $$ = $1;
2536         }
2537         | {
2538                 SCM nn = THIS->lexer_->lookup_identifier ("pitchnames");
2539                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
2540         }
2541         /* cont */ score_block {
2542                 /* WIP this is a bit arbitrary,
2543                    we should also allow \book or Composite_music.
2544                    However, you'd typically want to change paper
2545                    settings, and need a \score block anyway.  */
2546
2547                 THIS->lexer_->pop_state ();
2548                 Score *score = $2;
2549                 Book *book = new Book;
2550                 book->scores_.push (score);
2551
2552                 Music_output_def *paper = get_paper (THIS);
2553                 SCM s = book->to_stencil (paper, THIS->header_);
2554                 scm_gc_unprotect_object (score->self_scm ());
2555                 scm_gc_unprotect_object (book->self_scm ());
2556                 $$ = scm_list_2 (ly_scheme_function ("stencil-markup"), s);
2557         }
2558         ;
2559
2560 markup_list:
2561         chord_open markup_list_body chord_close { $$ = scm_reverse_x ($2, SCM_EOL); }
2562         ;
2563
2564 markup_line:
2565         '{' markup_list_body '}' {
2566                 SCM line = ly_scheme_function ("line-markup");
2567
2568                 $$ = scm_list_2 (line, scm_reverse_x ($2, SCM_EOL));
2569         }
2570         ;
2571
2572 markup_list_body:
2573         /**/ {  $$ = SCM_EOL; }
2574         | markup_list_body markup {
2575                 $$ = scm_cons ($2, $1);
2576         }
2577         ;
2578
2579
2580 %%
2581
2582 void
2583 My_lily_parser::set_yydebug (bool )
2584 {
2585 #if 0
2586         yydebug = 1;
2587 #endif
2588 }
2589
2590 void
2591 My_lily_parser::do_yyparse ()
2592 {
2593         yyparse ((void*)this);
2594 }
2595
2596
2597 /*
2598 Should make this optional?    It will also complain when you do
2599
2600         [s4]
2601
2602 which is entirely legitimate.
2603
2604 Or we can scrap it. Barchecks should detect wrong durations, and
2605 skipTypesetting speeds it up a lot.
2606 */
2607
2608 void
2609 My_lily_parser::beam_check (SCM dur)
2610 {
2611   Duration *d = unsmob_duration (dur);
2612   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2613     {
2614       Music *m = unsmob_music (last_beam_start_);
2615       m->origin ()->warning (_ ("Suspect duration found following this beam"));
2616     }
2617   last_beam_start_ = SCM_EOL;
2618 }
2619
2620
2621
2622
2623 /*
2624
2625 It is a little strange to have this function in this file, but
2626 otherwise, we have to import music classes into the lexer.
2627
2628 */
2629 int
2630 My_lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
2631 {
2632         if (ly_c_string_p (sid)) {
2633                 *destination = sid;
2634                 return STRING_IDENTIFIER;
2635         } else if (ly_c_number_p (sid)) {
2636                 *destination = sid;
2637                 return NUMBER_IDENTIFIER;
2638         } else if (unsmob_context_def (sid)) {
2639                 *destination = unsmob_context_def (sid)->clone_scm ();
2640                 return CONTEXT_DEF_IDENTIFIER;
2641         } else if (unsmob_score (sid)) {
2642                 Score *score = new Score (*unsmob_score (sid));
2643                 *destination = score->self_scm ();
2644                 return SCORE_IDENTIFIER;
2645         } else if (Music *mus = unsmob_music (sid)) {
2646                 mus = mus->clone ();
2647                 *destination = mus->self_scm ();
2648                 unsmob_music (*destination)->
2649                         set_property ("origin", make_input (last_input_));
2650                 return dynamic_cast<Event*> (mus)
2651                         ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2652         } else if (unsmob_duration (sid)) {
2653                 *destination = unsmob_duration (sid)->smobbed_copy ();
2654                 return DURATION_IDENTIFIER;
2655         } else if (unsmob_music_output_def (sid)) {
2656                 Music_output_def *p = unsmob_music_output_def (sid);
2657                 p = p->clone ();
2658
2659                 *destination = p->self_scm ();
2660                 return MUSIC_OUTPUT_DEF_IDENTIFIER;
2661         } else if (Text_item::markup_p (sid)) {
2662                 *destination = sid;
2663                 return MARKUP_IDENTIFIER;
2664         }
2665
2666         return -1;
2667 }
2668
2669 Music *
2670 property_op_to_music (SCM op)
2671 {
2672         Music *m = 0;
2673         SCM tag = ly_car (op);
2674         SCM symbol = ly_cadr (op);
2675         SCM args = ly_cddr (op);
2676         SCM grob_val = SCM_UNDEFINED;
2677         SCM grob_sym = SCM_UNDEFINED;
2678         SCM val = SCM_UNDEFINED;
2679
2680         if (tag == ly_symbol2scm ("assign"))
2681                 {
2682                 m = MY_MAKE_MUSIC ("PropertySet");
2683                 val = ly_car (args);
2684                 }
2685         else if (tag == ly_symbol2scm ("unset"))
2686                 m = MY_MAKE_MUSIC ("PropertyUnset");
2687         else if (tag == ly_symbol2scm ("poppush")
2688                  || tag == ly_symbol2scm ("push"))
2689                 {
2690                 m = MY_MAKE_MUSIC ("OverrideProperty");
2691                 grob_sym = ly_car (args);
2692                 grob_val = ly_cadr (args);
2693                 }
2694         else if (tag == ly_symbol2scm ("pop")) {
2695                 m = MY_MAKE_MUSIC ("RevertProperty");
2696                 grob_sym = ly_car (args);
2697                 }
2698
2699         m->set_property ("symbol", symbol);
2700
2701         if (val != SCM_UNDEFINED)
2702                 m->set_property ("value", val);
2703         if (grob_val != SCM_UNDEFINED)
2704                 m->set_property ("grob-value", grob_val);
2705
2706         if (grob_sym != SCM_UNDEFINED)
2707                 {
2708                 bool itc = internal_type_checking_global_b;
2709                 /* UGH.
2710                 */
2711                 bool autobeam = ly_c_equal_p (symbol, ly_symbol2scm ("autoBeamSettings"));
2712                 if (autobeam)
2713                         internal_type_checking_global_b = false;
2714                 m->set_property ("grob-property", grob_sym);
2715                 if (autobeam)
2716                         internal_type_checking_global_b = itc;
2717                 }
2718
2719         if (op == ly_symbol2scm ("poppush"))
2720                 m->set_property ("pop-first", SCM_BOOL_T);
2721
2722
2723         return m;
2724 }
2725
2726 Music*
2727 context_spec_music (SCM type, SCM id, Music *m, SCM ops)
2728 {
2729         Music *csm = MY_MAKE_MUSIC ("ContextSpeccedMusic");
2730
2731         csm->set_property ("element", m->self_scm ());
2732         scm_gc_unprotect_object (m->self_scm ());
2733
2734         csm->set_property ("context-type",
2735                 ly_c_symbol_p (type) ? type : scm_string_to_symbol (type));
2736         csm->set_property ("property-operations", ops);
2737
2738         if (ly_c_string_p (id))
2739                 csm->set_property ("context-id", id);
2740         return csm;
2741 }
2742
2743 SCM
2744 get_next_unique_context ()
2745 {
2746         static int new_context_count;
2747         char s[1024];
2748         snprintf (s, 1024, "uniqueContext%d", new_context_count++);
2749         return scm_makfrom0str (s);
2750 }
2751